US11175468B2 - Optical fiber junction assembly and sealing method thereof, and optical fiber junction box - Google Patents

Optical fiber junction assembly and sealing method thereof, and optical fiber junction box Download PDF

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Publication number
US11175468B2
US11175468B2 US16/993,714 US202016993714A US11175468B2 US 11175468 B2 US11175468 B2 US 11175468B2 US 202016993714 A US202016993714 A US 202016993714A US 11175468 B2 US11175468 B2 US 11175468B2
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Prior art keywords
housing
mating surface
optical fiber
overflow groove
welding bump
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US16/993,714
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US20210026089A1 (en
Inventor
Zhijian Zhang
Anliang Yang
Jian Cheng
Biao Qi
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4441—Boxes
    • G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4441—Boxes
    • G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
    • G02B6/44465—Seals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4441—Boxes
    • G02B6/4442—Cap coupling boxes
    • G02B6/4444—Seals
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/44528—Patch-cords; Connector arrangements in the system or in the box

Definitions

  • This application relates to the field of optical communication technologies, and in particular, to an optical fiber junction assembly and a sealing method thereof, and an optical fiber junction box.
  • Fiber-optic communication is a communication mode in which an optical wave is used as an information carrier and an optical fiber is used as a transmission medium. Because the fiber-optic communication has advantages such as a large capacity, long-distance transmission, and anti-electromagnetic interference, the fiber-optic communication better meets requirements of communications technologies on a large amount of information and high precision, and the transmission medium such as the optical fiber can be widely promoted because of a low price of the fiber-optic communication.
  • an optical fiber network has gradually been used in households, namely, fiber-to-the-home (FTTH).
  • FTTH fiber-to-the-home
  • an optical fiber junction box is increasingly widely applied to an FTTH technology.
  • the optical fiber junction box usually includes an upper cover and a lower bottom that are connected using a bolt, and a rubber ring is provided between the upper cover and the lower bottom.
  • the rubber ring may be extruded by the upper cover and the lower bottom such that the rubber ring can fill a gap between the upper cover and the lower bottom.
  • the rubber ring may encounter creep deformation during long-term use, thereby reducing sealing performance of the optical fiber junction box.
  • Embodiments of this application provide an optical fiber junction assembly and a sealing method thereof, and an optical fiber junction box, to resolve a problem that sealing performance of an optical fiber junction box is reduced due to aging of a rubber ring.
  • an optical fiber junction assembly includes a first housing, a first welding bump, a second housing, a second welding bump, and an overflow groove.
  • the first housing has a first mating surface and an accommodating cavity. An opening of the accommodating cavity is provided on the first mating surface.
  • a plurality of optical fiber connection ports is disposed on the first housing.
  • the first welding bump is disposed on the first mating surface, and is disposed around the opening of the accommodating cavity.
  • the second housing has a second mating surface. When the second housing is docked with the first housing, the second mating surface is disposed opposite to the first mating surface, and covers the opening of the accommodating cavity.
  • the second welding bump is disposed on the second mating surface.
  • the second welding bump When the first housing is docked with the second housing, the second welding bump is in contact with the first welding bump.
  • the first welding bump and the second welding bump are configured to form colloid after being heated and melted, and connect and seal the first mating surface and the second mating surface.
  • the overflow groove is disposed on at least one of the first mating surface and the second mating surface. The overflow groove is configured to accommodate the colloid. Therefore, the colloid can be prevented from remaining on surfaces of the first housing and the second housing during overflowing, thereby avoiding impact on appearance of an optical fiber junction box.
  • the first welding bump on the first housing and the second welding bump on the second housing are melted through a welding process to form the colloid.
  • the first housing and the second housing are then docked, and the first housing and the second housing are extruded using a clamp such that colloid remaining between the first housing and the second housing forms a connection layer.
  • the connection layer can connect the first housing to the second housing.
  • the first welding bump on the first housing is disposed around the opening of the accommodating cavity, and the second welding bump on the second housing is in contact with the first welding bump after the first housing and the second housing are docked.
  • connection layer formed by the melted first welding bump and second welding bump can also be disposed around the opening of the accommodating cavity.
  • a gap between the first housing and the second housing can be filled with the connection layer around the accommodating cavity.
  • the second housing can seal an internal component in the accommodating cavity while blocking the opening of the accommodating cavity. This can reduce a probability that heat, cold, light, oxygen, and microorganisms in the outside nature enter the accommodating cavity such that the optical fiber junction box has a specified Ingress Protection (IP) rating.
  • IP Ingress Protection
  • the optical fiber junction box provided in this embodiment of this application is of a fully sealed structure. A junction process of an optical fiber inside the closure is completed before delivery of the optical fiber junction box.
  • An external optical fiber and the optical fiber inside the closure can be spliced provided that the external optical fiber is inserted into an optical fiber connector on the first housing such that the optical fiber junction box achieves a plug-and-play effect.
  • the sealed optical fiber junction box provided in this application does not need to be sealed by extruding a rubber ring using a screw thread. In this way, a problem that sealing performance of the optical fiber junction box is reduced because the rubber ring encounters creep deformation during long-term use can be avoided.
  • first welding bump and the first housing may be of an integrated structure
  • second welding bump and the second housing may be of an integrated structure.
  • the connection layer formed by heating and melting the first welding bump and the second welding bump connects the first housing to the second housing. Therefore, an additional sealant such as a resin including a magnetically active material does not need to be added between the first housing and the second housing of the optical fiber junction box provided in this embodiment of this application such that complexity of the welding process and manufacturing costs can be reduced.
  • the overflow groove includes a first overflow groove disposed on the first mating surface.
  • the first overflow groove is disposed around the first welding bump.
  • the first overflow groove is mainly configured to accommodate colloid formed by melting the first welding bump.
  • the first overflow groove accommodates the colloid formed by melting the first welding bump such that an overflowing part of the colloid after extrusion can be prevented from adhering to inner and outer surfaces of the first housing and the second housing, thereby avoiding impact on appearance of the optical fiber junction assembly.
  • a groove wall of the first overflow groove is formed on a side surface that is of the first welding bump and that faces the first overflow groove.
  • the first overflow groove is closest to the first welding bump such that liquid colloid formed by heating and melting the first welding bump can quickly flow into the first overflow groove.
  • the overflow groove includes a second overflow groove disposed on the second mating surface.
  • the second overflow groove is disposed around the second welding bump.
  • a disposing manner of the second overflow groove is the same as that of the first overflow groove, and details are not described herein again.
  • the second overflow groove is mainly configured to accommodate colloid formed by melting the second welding bump.
  • a surface of one side that is of the first welding bump and that is close to the accommodating cavity is flush with an inner wall of the accommodating cavity.
  • the first welding bump and the first housing are made of a same material and are of an integrated structure.
  • the first welding bump and the first housing may be both made of injection molding materials, and therefore the first welding bump and the first housing of the integrated structure are formed through an injection molding process.
  • the optical fiber junction assembly includes a first housing, a first welding bump, a second housing, a second welding bump, and an overflow groove.
  • the first housing has a first mating surface and an accommodating cavity. An opening of the accommodating cavity is provided on the first mating surface.
  • a plurality of optical fiber connection ports is disposed on the first housing.
  • the first welding bump is disposed on the first mating surface, and is disposed around the opening of the accommodating cavity.
  • the second housing has a second mating surface. When the second housing is docked with the first housing, the second mating surface is disposed opposite to the first mating surface, and covers the opening of the accommodating cavity.
  • the second welding bump is disposed on the second mating surface.
  • the second welding bump is in contact with the first welding bump.
  • the first welding bump and the second welding bump are configured to form colloid after being heated and melted, and connect and seal the first mating surface and the second mating surface.
  • the overflow groove is disposed on at least one of the first mating surface and the second mating surface. The overflow groove is configured to accommodate the colloid.
  • the method for sealing the optical fiber junction assembly includes first, melting the first welding bump and the second welding bump, then docking the first housing with the second housing, and extruding the first housing and the second housing, where at least a part of the melted first welding bump and second welding bump forms a connection layer between the first housing and the second housing, and then curing the connection layer, and connecting the first housing to the second housing using the connection layer.
  • the method for sealing the optical fiber junction assembly has a same beneficial effect as the optical fiber junction assembly provided in the foregoing embodiment, and details are not described herein again.
  • an optical fiber junction box including a first housing, a second housing, and a connection layer.
  • the first housing has a first mating surface and an accommodating cavity. An opening of the accommodating cavity is provided on the first mating surface.
  • a plurality of optical fiber connection ports is disposed on the first housing.
  • the second housing is docked with the first housing.
  • the second housing has a second mating surface disposed opposite to the first mating surface, and the second mating surface covers the opening of the accommodating cavity.
  • the connection layer is located between the first mating surface and the second mating surface, and is disposed around the opening of the accommodating cavity. The connection layer is configured to connect the first mating surface to the second mating surface, and seal the accommodating cavity.
  • connection layer is made of a plastic material.
  • an overflow groove is disposed on at least one of the first mating surface and the second mating surface.
  • the overflow groove accommodates colloid that is made of the same material as the connection layer.
  • the optical fiber junction box has a same technical effect as the optical fiber junction assembly provided in the foregoing embodiment, and details are not described herein again.
  • a longitudinal section of the overflow groove is L-shaped or rectangular.
  • the longitudinal section is perpendicular to at least one of the first mating surface and the second mating surface.
  • the longitudinal section of the overflow groove is rectangular, colloid that overflows after colloid formed by melting the first welding bump and the second welding bump is extruded can be effectively accommodated and blocked, thereby preventing the overflowing colloid from further flowing to a surface of the first housing or the second housing.
  • the longitudinal section of the overflow groove may be set to an L shape.
  • the L-shaped overflow groove may form an art designing groove, and the art designing groove may visually block the connection layer between the first housing and the second housing, thereby improving appearance of the optical fiber junction box.
  • a chamfer exists at a junction position between a groove bottom and a groove wall of the overflow groove.
  • the chamfer facilitates flowing of colloid in the overflow groove such that overflowing colloid can be more easily filled in the overflow groove.
  • the overflow groove includes a first overflow groove disposed on the first mating surface.
  • the first overflow groove is disposed around the connection layer.
  • a technical effect of the first overflow groove is the same as that described above, and details are not described herein again.
  • the optical fiber junction box includes one first overflow groove.
  • the first overflow groove is located on one side that is of the connection layer and that is away from the accommodating cavity.
  • colloid formed by melting the first welding bump can flow into the first overflow groove such that the colloid formed by melting the first welding bump is prevented from overflowing to an outer surface of the optical fiber junction box in an extrusion procedure, thereby avoiding impact on appearance of the optical fiber junction box.
  • the optical fiber junction box includes two first overflow grooves a first outer overflow groove and a first inner overflow groove.
  • the first outer overflow groove is located on one side that is of the connection layer and that is away from the accommodating cavity.
  • the first inner overflow groove is located on one side that is of the connection layer and that is close to the accommodating cavity.
  • a part of colloid flowing to the outside of the first housing and the second housing in the colloid that overflows after the first welding bump and the second welding bump are melted and extruded may be accommodated in the first outer overflow groove and a second outer overflow groove.
  • a part of colloid flowing to the inside of the first housing and the second housing in the foregoing overflowing colloid may be accommodated in the first inner overflow groove and a second inner overflow groove.
  • a volume of the first inner overflow groove is less than or equal to a volume of the first outer overflow groove.
  • the part of colloid flowing to the inside of the first housing and the second housing in the colloid that overflows after the first welding bump and the second welding bump are heated, melted, and extruded has little impact on appearance of the optical fiber junction box. Therefore, to reduce an area that is of a wall thickness of a side wall of the accommodating cavity of the first housing and that is occupied by the overflow groove, the volume of the first inner overflow groove may be less than or equal to the volume of the first outer overflow groove.
  • the overflow groove includes a second overflow groove disposed on the second mating surface.
  • the second overflow groove is disposed around the connection layer.
  • a technical effect of the second overflow groove is the same as that described above, and details are not described herein again.
  • FIG. 1A is a schematic structural diagram of an optical fiber junction assembly according to some embodiments of this application.
  • FIG. 1B is another schematic structural diagram of an optical fiber junction assembly according to some embodiments of this application.
  • FIG. 2 is another schematic structural diagram of an optical fiber junction assembly according to some embodiments of this application.
  • FIG. 3 is a top view obtained by performing sectioning along a dashed line O 1 -O 1 in FIG. 2 ;
  • FIG. 4A is another top view obtained by performing sectioning along a dashed line O 1 -O 1 in FIG. 2 ;
  • FIG. 4B is another top view obtained by performing sectioning along a dashed line O 1 -O 1 in FIG. 2 ;
  • FIG. 4C is another top view obtained by performing sectioning along a dashed line O 1 -O 1 in FIG. 2 ;
  • FIG. 4D is another top view obtained by performing sectioning along a dashed line O 1 -O 1 in FIG. 2 ;
  • FIG. 5 is a flowchart of a method for sealing an optical fiber junction assembly according to some embodiments of this application.
  • FIG. 6A is an enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 6B is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 6C is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 6D is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 6E is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 7A is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 7B is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 7C is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 7D is another enlarged schematic view of a region C in FIG. 4A ;
  • FIG. 8A is an enlarged schematic view of a region D in FIG. 3 ;
  • FIG. 8B is another enlarged schematic view of a region D in FIG. 3 ;
  • FIG. 9A is another enlarged schematic view of a region D in FIG. 3 ;
  • FIG. 9B is a schematic structural diagram of a first housing according to some embodiments of this application.
  • FIG. 9C is a schematic structural diagram of a second housing according to some embodiments of this application.
  • FIG. 9D is another enlarged schematic view of a region D in FIG. 3 ;
  • FIG. 9E is another enlarged schematic view of a region D in FIG. 3 ;
  • FIG. 9F is a cross-sectional view of a partial structure of a sealed optical fiber junction assembly according to an embodiment of this application.
  • FIG. 10A is another enlarged schematic view of a region D in FIG. 3 ;
  • FIG. 10B is another enlarged schematic view of a region D in FIG. 3 .
  • 01 Optical fiber junction assembly
  • 10 First housing
  • 11 Second housing
  • 100 Accommodating cavity
  • 200 Optical fiber connection port
  • 13 First welding bump
  • 14 Second welding bump
  • 201 Optical fiber connector
  • 15 Connection layer
  • 21 First overflow groove
  • 22 Second overflow groove
  • 12 Overflowing part.
  • first”, “second”, and the like are merely used description, and shall not be understood as an indication or implication of relative importance or implicit indication of the number of indicated technical features. Therefore, a feature limited by “first”, “second”, or the like may explicitly or implicitly include one or more features.
  • orientation terms such as “upper”, “lower”, “left”, and “right” are defined relative to orientations in which components in the accompanying drawings are schematically placed. It should be understood that these orientation terms are relative concepts and are used for relative description and clarification, and may change accordingly based on changes of the orientations in which the components in the accompanying drawings are placed.
  • connection should be understood in a broad sense unless there is a specific stipulation and limitation.
  • connection may be a fixed connection, a detachable connection, or an integral connection, or may be a direct connection, or an indirect connection through an intermediate medium.
  • An embodiment of this application provides an optical fiber junction assembly 01 , including a first housing 10 and a second housing 11 shown in FIG. 1A .
  • the first housing 10 has a first mating surface A 1 and an accommodating cavity 100 .
  • An opening of the accommodating cavity 100 is provided on the first mating surface A 1 .
  • a plurality of optical fiber connection ports 200 are disposed on the first housing 10 , for example, on a surface B in FIG. 1A .
  • optical fiber connectors 201 are disposed on some optical fiber connection ports 200 .
  • the optical fiber connector 201 may enable an optical fiber in the accommodating cavity 100 and an external optical fiber to be detachably electrically connected, and fasten and support the optical fibers.
  • Internal components for optical fiber junction may be disposed in the accommodating cavity 100 , for example, a splicing tray, an optical splitter, a fiber spool for coiling a redundant optical fiber, and a fiber baffle. Structures and types of the internal components are not limited in this application, provided that it can be ensured that the internal components are all disposed in the accommodating cavity 100 .
  • the second housing 11 has a second mating surface A 2 .
  • the second mating surface A 2 is disposed opposite to the first mating surface A 1 , and covers the opening of the accommodating cavity 100 . If the foregoing internal components used for optical fiber junction are all located in the accommodating cavity 100 , after the second housing 11 is docked with the first housing 10 , as shown in FIG. 3 (a cross-sectional view obtained by performing sectioning along a dashed line O 1 -O 1 in FIG. 2 ), the second housing 11 may be configured to block the opening of the accommodating cavity 100 using the second mating surface A 2 .
  • the optical fiber junction assembly 01 further includes a first welding bump 13 and a second welding bump 14 shown in FIG. 1B .
  • the first welding bump 13 is disposed on the first mating surface A 1 (as shown in FIG. 1A ) of the first housing 10 .
  • the first welding bump 13 is disposed around the opening of the accommodating cavity 100 .
  • the second welding bump 14 is disposed on the second mating surface A 2 (as shown in FIG. 1A ) of the second housing 11 .
  • the first welding bump 13 and the second welding bump 14 when the first welding bump 13 and the second welding bump 14 are made of plastic materials, the first welding bump 13 and the second welding bump 14 may be melted in a heated state to form colloid, to connect and seal the first housing 10 and the second housing 11 .
  • the case in which a component in this application such as the first welding bump 13 is disposed around the opening of the accommodating cavity 100 means that the first welding bump 13 may be disposed around the opening of the accommodating cavity 100 for at least one circle.
  • the first welding bump 13 is disposed around the opening of the accommodating cavity 100 for approximately one circle, and the first welding bump 13 is not of a closed structure that is connected head to tail.
  • a specific structure of the first welding bump 13 is not limited in this application, provided that it can be ensured that the colloid formed by melting the first welding bump 13 and the second welding bump 14 in the heated state can connect and seal the first housing 10 and the second housing 11 .
  • the first housing 10 and the second housing 11 may be made of plastic materials.
  • the first housing 10 and the second housing 11 may be made of metal materials.
  • the first housing 10 and the first welding bump 13 are of an integrated structure
  • the second housing 11 and the second welding bump 14 are of an integrated structure.
  • connection layer 15 may connect and seal the first mating surface A 1 of the first housing 10 and the second mating surface A 2 of the second housing 11 .
  • the second housing 11 may be docked with the first housing 10 , to seal an internal component in the accommodating cavity 100 of the first housing 10 .
  • an optical fiber junction box is formed.
  • An embodiment of this application provides a method for sealing the optical fiber junction assembly 01 . As shown in FIG. 5 , the method includes S 101 to S 103 .
  • first welding bump 13 on a first housing 10 and the second welding bump 14 on a second housing 11 may be separately heated through a hot plate welding process or an ultrasonic welding process such that the first welding bump 13 and the second welding bump 14 are melted.
  • first welding bump 13 and the second welding bump 14 are melted to form colloid.
  • the first housing 10 is docked with the second housing 11 such that a first mating surface A 1 of the first housing 10 is disposed opposite to a second mating surface A 2 of the second housing 11 .
  • the first housing 10 and the second housing 11 are extruded using a clamp such that a part of the colloid is extruded out of the first housing 10 and the second housing 11 , and the other part of the colloid between the first housing 10 and the second housing 11 forms the connection layer 15 .
  • connection layer 15 may be cured through a process such as drying, to connect the first housing 10 to the second housing 11 .
  • the optical fiber junction box may be a fiber access terminal (FAT), a splitting and splicing closure (SSC), a terminal box (TB), or the like, or may be another box or case that can be applied to an optical distribution network (ODN).
  • FAT fiber access terminal
  • SSC splitting and splicing closure
  • TB terminal box
  • ODN optical distribution network
  • any optical fiber junction box includes the first housing 10 , the second housing 11 , and the connection layer 15 shown in FIG. 4B .
  • the first housing 10 has a first mating surface A 1 and an accommodating cavity 100 shown in FIG. 1A .
  • An opening of the accommodating cavity 100 is provided on the first mating surface A 1 .
  • a plurality of optical fiber connection ports 200 are disposed on the first housing 10 .
  • the second housing 11 is docked with the first housing 10 .
  • the second housing 11 has a second mating surface A 2 disposed opposite to the first mating surface A 1 of the first housing 10 , and the second mating surface A 2 covers the opening of the accommodating cavity 100 .
  • connection layer 15 is located between the first mating surface A 1 and the second mating surface A 2 , and is disposed around the opening of the accommodating cavity 100 .
  • the connection layer 15 is configured to connect the first mating surface A 1 to the second mating surface A 2 such that the second housing 11 having the second mating surface A 2 can block and seal the opening of the accommodating cavity 100 .
  • the connection layer 15 may be made of the same material as the first housing 10 and the second housing 11 .
  • the second mating surface A 2 of the second housing 11 is a planar surface shown in FIG. 4B .
  • the second mating surface A 2 of the second housing 11 may be an inclined surface.
  • the second mating surface A 2 of the second housing 11 is a folded surface having a specified bending angle.
  • a disposing manner of the second mating surface A 2 of the second housing 11 is not limited in this application, and a person skilled in the art may set the disposing manner based on a structure of an internal component in the accommodating cavity 100 of the first housing 10 , provided that the second housing 11 having the second mating surface A 2 can block and seal the opening of the accommodating cavity 100 after the connection layer 15 connects the first mating surface A 1 to the second mating surface A 2 .
  • the second mating surface A 2 is the planar surface shown in FIG. 4B .
  • connection layer 15 can connect and seal the first housing 10 and the second housing 11 .
  • the first welding bump 13 on the first housing 10 is disposed around the opening of the accommodating cavity 100
  • the second welding bump 14 on the second housing 11 is in contact with the first welding bump 13 after the first housing 10 and the second housing 11 are docked. Therefore, the connection layer 15 formed by the melted first welding bump 13 and second welding bump 14 can also be disposed around the opening of the accommodating cavity 100 .
  • a gap between the first housing 10 and the second housing 11 can be filled with the connection layer 15 around the accommodating cavity 100 .
  • the second housing 11 can seal an internal component in the accommodating cavity 100 while blocking the opening of the accommodating cavity 100 . This can reduce a probability that heat, cold, light, oxygen, and microorganisms in the outside nature enter the accommodating cavity 100 such that the optical fiber junction box has a specified IP rating.
  • the optical fiber junction box provided in this embodiment of this application is of a fully sealed structure.
  • a junction process of an optical fiber inside the closure is completed before delivery of the optical fiber junction box.
  • An external optical fiber and the optical fiber inside the closure can be spliced provided that the external optical fiber is inserted into the optical fiber connector 201 in FIG. 2 such that the optical fiber junction box achieves a plug-and-play effect.
  • the sealed optical fiber junction box provided in this application does not need to be sealed by extruding a rubber ring using a screw thread. In this way, a problem that sealing performance of the optical fiber junction box is reduced because the rubber ring encounters creep deformation during long-term use can be avoided.
  • first welding bump 13 and the first housing 10 may be of an integrated structure
  • second welding bump 14 and the second housing 11 may be of an integrated structure.
  • the connection layer 15 formed by heating and melting the first welding bump 13 and the second welding bump 14 connects the first housing 10 to the second housing 11 .
  • an additional sealant such as a resin including a magnetically active material does not need to be added between the first housing 10 and the second housing 11 of the optical fiber junction box provided in this embodiment of this application such that complexity of the welding process and manufacturing costs can be reduced.
  • a longitudinal section of the first welding bump 13 is rectangular.
  • the longitudinal section of the first welding bump 13 is perpendicular to the first mating surface A 1 of the first housing 10 .
  • the second welding bump 14 and the first welding bump 13 may be symmetrically disposed.
  • a longitudinal section of the first welding bump 13 is rectangular
  • a longitudinal section of the second welding bump 14 is also rectangular.
  • the longitudinal section of the second welding bump 14 is perpendicular to the second mating surface A 2 of the second housing 11 .
  • the case in which the second welding bump 14 and the first welding bump 13 are symmetrically disposed means that the second welding bump 14 and the first welding bump 13 are symmetrically disposed with respect to an interface formed by the docking of the first housing 10 and the second housing 11 .
  • a surface that is of the first welding bump 13 and that faces the second welding bump 14 is a planar surface
  • a surface that is of the second welding bump 14 and that faces the first welding bump 13 is a planar surface.
  • a surface that is of the first welding bump 13 and that is away from the first mating surface A 1 of the first housing 10 has at least one protrusion.
  • the surface that is of the first welding bump 13 and that is away from the first mating surface A 1 of the first housing 10 is a downwardly protruding curved surface. If the second welding bump 14 and the first welding bump 13 are symmetrically disposed, a surface that is of the second welding bump 14 and that is away from the second mating surface A 2 of the second housing 11 is an upwardly protruding curved surface.
  • a part that is of the longitudinal section of the first welding bump 13 and that is away from the first mating surface A 1 is a downwardly protruding triangle. If the second welding bump 14 and the first welding bump 13 are symmetrically disposed, a part that is of the longitudinal section of the second welding bump 14 and that is away from the second mating surface A 2 is an upwardly protruding triangle.
  • a part that is of the longitudinal section of the first welding bump 13 and that is away from the first mating surface A 1 is a downwardly protruding trapezoid. If the second welding bump 14 and the first welding bump 13 are symmetrically disposed, a part that is of the longitudinal section of the second welding bump 14 and that is away from the second mating surface A 2 is an upwardly protruding trapezoid.
  • the surface that is of the first welding bump 13 and that is away from the first mating surface A 1 has a plurality of protrusions disposed at intervals such that the surface that is of the first welding bump 13 and that is away from the first mating surface A 1 of the first housing 10 is uneven.
  • a surface that is of the second welding bump 14 and that is away from the second mating surface A 2 has a plurality of protrusions disposed at intervals such that the surface that is of the second welding bump 14 and that is away from the second mating surface A 2 of the second housing 11 is uneven.
  • ultrasound energy may be concentrated on a downwardly protruding part of the surface that is of the first welding bump 13 and that faces the second welding bump 14 and an upwardly protruding part of the surface that is of the second welding bump 14 and that faces the first welding bump 13 . Therefore, the first welding bump 13 and the second welding bump 14 can reach a welding temperature more easily such that a better welding effect can be achieved.
  • the second welding bump 14 and the first welding bump 13 are symmetrically disposed is used for description above.
  • the second welding bump 14 and the first welding bump 13 may not be symmetrically disposed.
  • a part that is of the longitudinal section of the first welding bump 13 and that is away from the first mating surface A 1 is a downwardly protruding triangle.
  • the surface that is of the second welding bump 14 and that faces the first welding bump 13 is a planar surface.
  • a part that is of the longitudinal section of the first welding bump 13 and that is away from the first mating surface A 1 is a downwardly protruding trapezoid.
  • the surface that is of the second welding bump 14 and that faces the first welding bump 13 is a planar surface.
  • the first welding bump 13 may be heated and melted through the ultrasonic welding process.
  • the second welding bump 14 may be heated and melted through the hot plate welding process.
  • the surface that is of the first welding bump 13 and that is away from the first mating surface A 1 of the first housing 10 is a downwardly protruding curved surface.
  • the surface that is of the second welding bump 14 and that faces the first welding bump 13 is a planar surface.
  • the first welding bump 13 may be heated and melted through the ultrasonic welding process.
  • the second welding bump 14 may be heated and melted through the hot plate welding process.
  • the surface that is of the first welding bump 13 and that is away from the first mating surface A 1 has a plurality of protrusions disposed at intervals such that the surface that is of the first welding bump 13 and that is away from the first mating surface A 1 of the first housing 10 is uneven.
  • the surface that is of the second welding bump 14 and that faces the first welding bump 13 is a planar surface.
  • the first welding bump 13 may be heated and melted through the ultrasonic welding process.
  • the second welding bump 14 may be heated and melted through the hot plate welding process.
  • the following provides descriptions using an example in which the surface that is of the first welding bump 13 and that faces the second welding bump 14 is a planar surface, the first welding bump 13 and the first housing 10 are of an integrated structure, the surface that is of the second welding bump 14 and that faces the first welding bump 13 is a planar surface, and the second welding bump 14 and the second housing 11 are of an integrated structure.
  • the first housing 10 and the second housing 11 need to be extruded such that a part of the colloid overflows, and the other part of the colloid remains between the first mating surface A 1 and the second mating surface A 2 , to form the connection layer 15 for connecting the first housing 10 to the second housing 11 .
  • the overflowing colloid remains on inner surfaces and outer surfaces of the first housing 10 and the second housing 11 .
  • colloid remaining on the outer surfaces of the first housing 10 and the second housing 11 may be removed using an external tool such as a blade or a scraper.
  • the optical fiber junction box further includes at least one overflow groove.
  • the overflow groove is configured to accommodate the colloid formed by heating and melting the first welding bump 13 and the second welding bump 14 .
  • the overflow groove may include a first overflow groove 21 disposed on the first mating surface A 1 .
  • the first overflow groove 21 is disposed around the first welding bump 13 , and the first overflow groove 21 is mainly configured to accommodate liquid colloid formed by melting the first welding bump 13 .
  • the overflow groove may include a second overflow groove 22 disposed on the second mating surface A 2 .
  • the optical fiber junction box includes two overflow groove the first overflow groove 21 disposed on the first mating surface A 1 and the second overflow groove 22 disposed on the second mating surface A 2 .
  • the first overflow groove 21 is disposed around the first welding bump 13 .
  • the second overflow groove 22 is disposed around the second welding bump 14 . In this case, when the first housing 10 is docked with the second housing 11 , as shown in FIG. 9A , one second overflow groove 22 and one first overflow groove 21 are symmetrically disposed.
  • the case in which the second overflow groove 22 and the first overflow groove 21 are symmetrically disposed means that the second overflow groove 22 and the first overflow groove 21 are symmetrically disposed with respect to an interface formed by the docking of the first housing 10 and the second housing 11 .
  • the first overflow groove 21 and the second overflow groove 22 may be disposed around the connection layer 15 formed by melting the first welding bump 13 and the second welding bump 14 .
  • a groove wall B 1 of the first overflow groove 21 is formed on a side surface that is of the first welding bump 13 and that faces the first overflow groove 21 .
  • the first overflow groove 21 is closest to the first welding bump 13 such that liquid colloid formed by heating and melting the first welding bump 13 can quickly flow into the first overflow groove 21 .
  • a groove wall B 2 of the second overflow groove 22 is formed on a side surface that is of the second welding bump 14 and that faces the second overflow groove 22 .
  • the second overflow groove 22 is closest to the second welding bump 14 such that liquid colloid formed by heating and melting the second welding bump 14 can quickly flow into the second overflow groove 22 .
  • only one first overflow groove 21 may be disposed on the first mating surface A 1 , and the first overflow groove 21 is located on one side that is of the first welding bump 13 (or the connection layer 15 formed by melting the first welding bump 13 and the second welding bump 14 ) and that is away from the accommodating cavity 100 .
  • Only one second overflow groove 22 is symmetrically disposed on the second mating surface A 2 , and the second overflow groove 22 is located on one side that is of the second welding bump 14 and that is away from the accommodating cavity 100 .
  • the colloid formed by melting the first welding bump 13 and the second welding bump 14 can flow into the first overflow groove 21 and the second overflow groove 22 such that the colloid formed by melting the first welding bump 13 and the second welding bump 14 is prevented from overflowing to an outer surface of the optical fiber junction box in an extrusion procedure, thereby avoiding impact on appearance of the optical fiber junction box.
  • a width of the first welding bump 13 is increased as much as possible (in a same direction as the wall thickness of the accommodating cavity 100 ), to ensure that the melted first welding bump 13 can provide enough colloid to form the connection layer 15 between the first housing 10 and the second housing 11 together with the melted second welding bump 14 .
  • a volume of the first welding bump 13 may be less than or equal to a volume of the first overflow groove 21 .
  • a volume of the second welding bump 14 may be less than or equal to a volume of the second overflow groove 22 .
  • FIG. 9A An example in which a longitudinal section of the first overflow groove 21 and a longitudinal section of the second overflow groove 22 in FIG. 9A are rectangular is used for description above.
  • the longitudinal sections of the first overflow groove 21 and the second overflow groove 22 may be alternatively L-shaped.
  • the L-shaped first overflow groove 21 or second overflow groove 22 may form an art designing groove, and the art designing groove may visually block the connection layer 15 between the first housing 10 and the second housing 11 , thereby improving appearance of the optical fiber junction box.
  • the longitudinal section of the first overflow groove 21 is perpendicular to the first mating surface A 1 .
  • the longitudinal section of the second overflow groove 22 is perpendicular to the second mating surface A 2 .
  • the optical fiber junction assembly 01 includes two first overflow grooves shown in FIG. 10A : a first outer overflow groove 21 a and a first inner overflow groove 21 b .
  • the first outer overflow groove 21 a is located on one side that is of the first welding bump 13 (or the connection layer 15 formed by melting the first welding bump 13 and the second welding bump 14 ) and that is away from the accommodating cavity 100 .
  • the first inner overflow groove 21 b is located on one side that is of the first welding bump 13 (or the connection layer 15 formed by melting the first welding bump 13 and the second welding bump 14 ) and that is close to the accommodating cavity 100 .
  • a second outer overflow groove 22 a symmetrical to the first outer overflow groove 21 a and a second inner overflow groove 22 b symmetrical to the first inner overflow groove 21 b are disposed on the second mating surface A 2 .
  • a part of colloid flowing to the outside of the first housing 10 and the second housing 11 in the colloid that overflows after the first welding bump 13 and the second welding bump 14 are melted and extruded may be accommodated in the first outer overflow groove 21 a and the second outer overflow groove 22 a .
  • a part of colloid flowing to the inside of the first housing 10 and the second housing 11 in the foregoing overflowing colloid may be accommodated in the first inner overflow groove 21 b and the second inner overflow groove 22 b.
  • a volume of the first inner overflow groove 21 b may be less than or equal to a volume of the first outer overflow groove 21 a .
  • a volume of the second inner overflow groove 22 b may be less than or equal to a volume of the second outer overflow groove 22 a.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Light Guides In General And Applications Therefor (AREA)
US16/993,714 2019-07-26 2020-08-14 Optical fiber junction assembly and sealing method thereof, and optical fiber junction box Active US11175468B2 (en)

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0511071A (ja) 1991-07-02 1993-01-19 Casio Comput Co Ltd 表示板を備えた機器ケース
US5684911A (en) * 1995-09-01 1997-11-04 Lucent Technologies Inc. Sub-surface fiber optic splice housing and method of splicing fiber optic cable
US6085013A (en) * 1997-10-09 2000-07-04 The Furukawa Electric Co., Ltd. Optical cable closure
US6314229B1 (en) * 1998-03-09 2001-11-06 Japan Recom Ltd. End seal structure for cable closure
WO2003081734A1 (fr) 2002-03-27 2003-10-02 The Furukawa Electric Co., Ltd Module et procede optique d'assemblage de module optique
US20040095444A1 (en) 2002-11-19 2004-05-20 Drummond James Paul Laser welding methods and structures and control therefor including welded inkjet printheads
US20070116413A1 (en) 2005-11-22 2007-05-24 Cox Terry D Fiber optic closure methods and apparatus
CN102207588A (zh) 2010-03-30 2011-10-05 国络多媒体有限公司 单件式光纤适配器
US20110242434A1 (en) 2008-12-18 2011-10-06 Sharp Kabushiki Kaisha Lighting device, display device and television receiver
US20140126954A1 (en) 2011-05-23 2014-05-08 Basf Se Frictional Weld Joint For an Article Comprising A Thermoplastic Material
CN203688870U (zh) 2014-01-10 2014-07-02 杭州华宏通信设备有限公司 一种光纤接续保护盒
CN205647996U (zh) 2016-04-06 2016-10-12 歌尔股份有限公司 一种超声焊接防溢胶结构
CN107370855A (zh) 2016-05-11 2017-11-21 华为终端（东莞）有限公司 壳体组件及移动终端

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0743814Y2 (ja) * 1989-06-05 1995-10-09 株式会社コパル 磁気テープカートリッジ
JPH0451454A (ja) * 1990-06-18 1992-02-19 Furukawa Battery Co Ltd:The 蓄電池の電槽と蓋の融着方法
JPH04132846U (ja) * 1991-05-30 1992-12-09 市光工業株式会社 エンブレムの取付構造
JP3403050B2 (ja) * 1997-05-26 2003-05-06 小島プレス工業株式会社 樹脂製リザーバータンク及びその製造方法
JP3889303B2 (ja) * 2002-03-29 2007-03-07 ジー・ピー・ダイキョー株式会社 内部部材を有する中空体の接合構造
CN103221863B (zh) * 2010-10-28 2016-06-01 康宁光缆系统有限责任公司 抗冲击光纤外壳及相关方法
JP5895218B2 (ja) * 2011-11-18 2016-03-30 パナソニックＩｐマネジメント株式会社 樹脂成形品形成用分割体、樹脂成形品製造方法および熱交換器

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0511071A (ja) 1991-07-02 1993-01-19 Casio Comput Co Ltd 表示板を備えた機器ケース
US5684911A (en) * 1995-09-01 1997-11-04 Lucent Technologies Inc. Sub-surface fiber optic splice housing and method of splicing fiber optic cable
US6085013A (en) * 1997-10-09 2000-07-04 The Furukawa Electric Co., Ltd. Optical cable closure
US6314229B1 (en) * 1998-03-09 2001-11-06 Japan Recom Ltd. End seal structure for cable closure
WO2003081734A1 (fr) 2002-03-27 2003-10-02 The Furukawa Electric Co., Ltd Module et procede optique d'assemblage de module optique
US20050041934A1 (en) 2002-03-27 2005-02-24 The Furukawa Electric Co, Ltd. Optical module and method of assembling the optical module
US20040095444A1 (en) 2002-11-19 2004-05-20 Drummond James Paul Laser welding methods and structures and control therefor including welded inkjet printheads
CN101395514A (zh) 2005-11-22 2009-03-25 康宁光缆系统有限责任公司 光纤接续盒方法和装置
US20070116413A1 (en) 2005-11-22 2007-05-24 Cox Terry D Fiber optic closure methods and apparatus
US20110242434A1 (en) 2008-12-18 2011-10-06 Sharp Kabushiki Kaisha Lighting device, display device and television receiver
CN102227588A (zh) 2008-12-18 2011-10-26 夏普株式会社 照明装置、显示装置和电视接收装置
CN102207588A (zh) 2010-03-30 2011-10-05 国络多媒体有限公司 单件式光纤适配器
US20140126954A1 (en) 2011-05-23 2014-05-08 Basf Se Frictional Weld Joint For an Article Comprising A Thermoplastic Material
CN203688870U (zh) 2014-01-10 2014-07-02 杭州华宏通信设备有限公司 一种光纤接续保护盒
CN205647996U (zh) 2016-04-06 2016-10-12 歌尔股份有限公司 一种超声焊接防溢胶结构
CN107370855A (zh) 2016-05-11 2017-11-21 华为终端（东莞）有限公司 壳体组件及移动终端

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MX2020009778A (es) 2021-02-18
US20210026089A1 (en) 2021-01-28
JP2021536024A (ja) 2021-12-23
WO2021016735A1 (zh) 2021-02-04
BR112020015865A2 (pt) 2022-02-22
AR119481A1 (es) 2021-12-22
CN112567273B (zh) 2022-04-05
EP3792670A1 (en) 2021-03-17
PH12020551360A1 (en) 2021-08-16
CN112567273A (zh) 2021-03-26

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